1.
If the binding energy of 14N^{14}\text{N} is 7.5MeV7.5\,\text{MeV} per nucleon and that of 15N^{15}\text{N} is 7.7MeV7.7\,\text{MeV} per nucleon, then the energy required to remove a neutron from 15N^{15}\text{N} is